/* util.c - various utility functions

 *

 * Copyright (C) 2005-2007 Gerhard Häring <gh@ghaering.de>

 *

 * This file is part of pysqlite.

 *

 * This software is provided 'as-is', without any express or implied

 * warranty.  In no event will the authors be held liable for any damages

 * arising from the use of this software.

 *

 * Permission is granted to anyone to use this software for any purpose,

 * including commercial applications, and to alter it and redistribute it

 * freely, subject to the following restrictions:

 *

 * 1. The origin of this software must not be misrepresented; you must not

 *    claim that you wrote the original software. If you use this software

 *    in a product, an acknowledgment in the product documentation would be

 *    appreciated but is not required.

 * 2. Altered source versions must be plainly marked as such, and must not be

 *    misrepresented as being the original software.

 * 3. This notice may not be removed or altered from any source distribution.

 */

#include "module.h"

#include "connection.h"

int pysqlite_step(sqlite3_stmt* statement, pysqlite_Connection* connection)

{

    int rc;

    if (statement == NULL) {

        /* this is a workaround for SQLite 3.5 and later. it now apparently

         * returns NULL for "no-operation" statements */

        rc = SQLITE_OK;

    } else {

        Py_BEGIN_ALLOW_THREADS

        rc = sqlite3_step(statement);

        Py_END_ALLOW_THREADS

    }

    return rc;

}

/**

 * Checks the SQLite error code and sets the appropriate DB-API exception.

 * Returns the error code (0 means no error occurred).

 */

int _pysqlite_seterror(sqlite3* db, sqlite3_stmt* st)

{

    int errorcode;

    /* SQLite often doesn't report anything useful, unless you reset the statement first */

    if (st != NULL) {

        (void)sqlite3_reset(st);

    }

    errorcode = sqlite3_errcode(db);

    switch (errorcode)

    {

        case SQLITE_OK:

            PyErr_Clear();

            break;

        case SQLITE_INTERNAL:

        case SQLITE_NOTFOUND:

            PyErr_SetString(pysqlite_InternalError, sqlite3_errmsg(db));

            break;

        case SQLITE_NOMEM:

            (void)PyErr_NoMemory();

            break;

        case SQLITE_ERROR:

        case SQLITE_PERM:

        case SQLITE_ABORT:

        case SQLITE_BUSY:

        case SQLITE_LOCKED:

        case SQLITE_READONLY:

        case SQLITE_INTERRUPT:

        case SQLITE_IOERR:

        case SQLITE_FULL:

        case SQLITE_CANTOPEN:

        case SQLITE_PROTOCOL:

        case SQLITE_EMPTY:

        case SQLITE_SCHEMA:

            PyErr_SetString(pysqlite_OperationalError, sqlite3_errmsg(db));

            break;

        case SQLITE_CORRUPT:

            PyErr_SetString(pysqlite_DatabaseError, sqlite3_errmsg(db));

            break;

        case SQLITE_TOOBIG:

            PyErr_SetString(pysqlite_DataError, sqlite3_errmsg(db));

            break;

        case SQLITE_CONSTRAINT:

        case SQLITE_MISMATCH:

            PyErr_SetString(pysqlite_IntegrityError, sqlite3_errmsg(db));

            break;

        case SQLITE_MISUSE:

            PyErr_SetString(pysqlite_ProgrammingError, sqlite3_errmsg(db));

            break;

        default:

            PyErr_SetString(pysqlite_DatabaseError, sqlite3_errmsg(db));

            break;

    }

    return errorcode;

}